All you’ll have to do is fill out some basic information, then choose your investing style: conservative, moderate or aggressive.

Don’t worry: The Stash app explains what these mean, but as a rule of thumb, the younger you are, the more aggressive you should be.

You’ll go on to answer questions about your employment status and citizenship. Heads up: It’s also going to ask for your Social Security number. It won’t check your credit; it just needs to know you’re a real person. Any other SEC-registered investment advisor will ask for it, too.

In “Auto-Stash” mode, the app automatically withdraws a certain amount of cash from your bank account as often as you’d like — from once a week to once a month. Pick whatever you feel like you can handle — even just $5.

You’ll also get to choose what the Stash app does with that money. This is where the whole do-good part comes into play.

Under its “Discover” tab, Stash lists more than 30 investment-fund options, all broken down into three categories: “I Believe,” “I Like” and “I Want”. If you want to help promote good causes, select “I Believe.”

“I Believe”

Here you’ll find portfolios that’ll invest in companies based on your beliefs — whether that’s workplace equality or a cleaner environment. You’ll know what you want because these all come with jargon-free names.

“Clean & Green”

This portfolio is a great option for those who want to help our “mess of” an environment. The Clean & Green exchange-traded fund (ETF) consists of 30 renewable energy companies, including SolarCity, China Everbright International Limited and Vestas Wind Systems.

“Do The Right Thing”

This fund includes companies such as 3M, which has donated billions of dollars to education, communities and the environment.

“Defending America”

Want to help the military in this uneasy time? Look into the this fund.

So, you do-good millennials, no more excuses. You’ve got an easy way to invest — plus you can help the world.

Carson Kohler (@CarsonKohler) is a junior writer at The Penny Hoarder. She’s a millennial, too.

This was originally published on The Penny Hoarder, one of the largest personal finance websites. We help millions of readers worldwide earn and save money by sharing unique job opportunities, personal stories, freebies and more. In 2016, Inc. 500 ranked The Penny Hoarder as the No. 1 fastest-growing private media company in the U.S.